<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        
        var a = 10 ;
        var b = 20 ;

        console.log( a > b ); // false
        console.log( a < b ); // true



        var c = 15;
        console.log(c >= a  ); //true
        console.log(c <= b  ); //true
        

        var d = '15'
        console.log( d  == c ); // true
        console.log( d  === c )  // false
        
    </script>
</body>
</html>